Bus-bar support



April 15, 1924. 1,490,202 J. M. BROWN BUS BAR SUPPORT Filed Nov. 28 1919 WITNESSES: INVENTOR ATTORNEY Patented Apr. 15, 1924.

UNITED STATES PATENT OFFICE.

JAMES M. BROWN, or rrrrsnuaen, PENNSYLVANIA, AssIe on To wns'rmenousn mncrarc & MANUFACTURING COMPANY, A CORPORATION or PENNSYLVANIA.

BUS-BAR SUPPORT;

Application filed No vember 28, 1919. Serial No."340,980.

To all whom it may concern:

Be it known that I, JAMES M. BROWN, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Bus-Bar Supports of which the following is a specification.

My invention relates to electrical conductor-supporting devices and particularly to devices for supporting bus-bars.

One object of my invention is to provide a device for supporting bus-bars that shall be effectively secured opposite an opening in a bus-bar wall or panel structure in such manner as to permit withdrawal from its position through the opening.

Another object of my invention is to provide adjustable supporting means to permit a bus-bar or other conductor to be adjusted toward and away from a panel or wall on which it issupported.

Another object of my invention is to provide anchor or securing members that shall be so united to a bus-bar insulator by a body of molded material as to adapt the insulator to be securely fastened to a supporting member and to permit a member for attachment to the insulator to be securely fastened thereto.

In practicing my invention, I provide an insulator of the pillar type having peripheral notches or other means by which a body of molded material ma be caused to effectively adhere thereto. crew-threaded nuts or other securing members are embedded in the molded material for the reception,at one end of the insulator, of busbar-attachin members and, at the other end of: the insulator, of a screw-threaded base plate.

The base plate co-operates with a supporting member disposed on, and surrounding an opening in, a bus-bar structure wall or panel and permits the insulator and certain of its co-operating members to be dismounted from operative position by withdrawal through the opening in the wall.

Figure 1, of the accompanying drawings, is a side View, partially inelevation and partially in section, of a bus-barstructure embodying my invention, and Fig. 2 is a fragmentary detail view, similar to a portion of Fig. 1, showing a modified form of structure embodying my invention.

In general, my device comprises an insulator 1, preferably of porcelain, shell or cap members 2 and 3 secured'to the ends of the member 1 by bodies of molded material 4:, such as cement or bearing metal, bus-barseruring members 5 for supporting bus-bars 6, a base plate 7 and a supporting memher 8 secured adj'acentto an opening 9 in a panel 10, or other structure, by bolts 11.

Each end of the insulator 1 is provided with peripheral-notches or recesses 12 that serve as anchoring means for an annular body of the molded material 4 that is encased by the cap members 2 and 8. The latter are provided with openings 13 through which screws or other members 15 extend. Nutsll or other securing members are embedded in the material 4 for the reception of the members 15. The members 15 constitute means by which the members 5 may. be secured to the outer end of the insulator and means by which the base plate 7 may be secured to the base of the insulator.

The supporting member 8 has a central opening which registers With the opening 9 in the wall 10 and is interiorl screw threaded for the reception of a s eeve 16 that is both interiorly and exteriorly screw threaded. The base plate 7 is threaded to be received by the sleeve 16, as is, also, an eXteriorly-threaded sleevell' having peripheral notches 18 for co-operation with a spanner wrench or other device which may be employed to turn the sleeve 17 into locking engagement with the base plate 7. An annular lock nut or ring 19 engages the outer threads of the sleeve 16 and may be moved into engagement with the supporting member 8.

In manufacture, the nuts 14 are provided with temporary bolts and are placed in Q0- operative position with respect to the shell or cap members 2 and 3 and the caps placed over the ends of the insulator 1, after which, the material 4 is poured, while in a plastic state, through spaces 20, between the insulator 1 and the inner edges of the cap member 2 and 3, to fill the caps and the notches 12. When the material 1 has set, the temporary bolts may be withdrawn, leaving the nuts 14 securely embedded in the material 4 and ready for the reception of the bolts 15.

By loosening the members 17 and 19 by a. turning movement, the sleeve 16 may be released and subsequently moved with respect to the plate 8 for adjusting the insulator longitudinally to better place it with respect to the bus bars 6 or the wall 10 and to be locked in adjusted position, or the insulator may be withdrawn through the opening 9 after the bus bars 6 have been detached from the structure.

In Fig. 2, the modified form of device is substantially the same as the device described above, with the exception that the intermedate sleeve 16 is omitted. In this form, the base member 7 directly engages the supporting member 8, and a lock nut or ring 21 serves to lock the parts in adjusted position.

The device of Fig. 2 is simpler in construction than the device of Fig. 1, but requires the turning of the insulator to adjust or withdraw it, which is not true of the device shown in Fig. 1.

While I have shown and described particular forms of my invention, changes may be efi'ected therein without departing from the spirit and scope thereof, as set forth in the appended claims.

I claim as my invention:

1. A bus-bar structure comprising an insulator, an annular exteriorly-threaded base member for the insulator and a supporting member for the base member having an interiorly-threaded aperture through which the insulator may be withdrawn.

2. A bus-bar structure comprising an insulator, a base member therefor and a supporting member for the base member having an aperture through which the insulator may be withdrawn.

3. A bus-bar-supporting device aligned with an opening in a bus-bar wall or panel structure, and means for securing the supporting device to the wall or panel and for permitting its withdrawal through the openmg.

1. The combination with a panel having an aperture therein, of an insulator that may pass through the opening, and a support therefor for securing the insulator to the panel and permitting withdrawal of the insulator through the said opening.

A bus-bar structure comprising an insulator, a support for supporting the insulator in a determined position on one side of the support and having an opening through which the insulator may be moved to the opposite side of the support.

6. A bus-bar structure comprising a base member having a threaded aperture therein, an externally and internally threaded sleeve disposed in adjustable engagement with the base member and an insulator that may pass through the aperture in the base member having a threaded portion engaging the internal threads or" the said sleeve.

7. A bus-bar structure comprising a base member having a threaded aperture therein, a sleeve threaded externally and internally disposed in the threaded aperture, a threaded sleeve co-operating with the first-mentioned sleeve and the base member for locking the sleeve in a predetermined relation with the base member and an insulator that may pass through the said aperture having a threaded portion engaging the internal threads of the first-mentioned sleeve for adjusta-bly supporting the insulator.

8. A bus-bar structure comprising a base member having an aperture therein, an insulator that may pass through the said aperture and a rotatable member cooperating with the base and the said insulator for adjustably'supporting the insulator whereby longitudinal movement may be imparted to the insulator without rotation thereof.

9. A bus-bar structure.comprising a base member having an aperture therein, an insulator that may pass through the said aperture, and a rotatable member having threaded engagement with the insulator and the base for imparting longitudinal movement thereto without rotation of the insulator.

10. A bus-bar structure comprising a base member having an aperture therein, an insulator that may pass through the said aperture, a rotatable member having threaded engagement with the insulator and the base for imparting longitudinal movement thereto without rotation of the insulator, and means for locking the rotatable member in a predetermined position with respect to the base.

11. A bus-bar structure comprising a base member having an aperture therein, an insulator that may pass through the said aperture, a rotatable member having threaded engagement with the insulator and the base for imparting longitudinal movement thereto without rotation of the insulator, and means for locking the rotatable member in a predetermined position with respect to the insulator.

12. A bus-bar structure comprising a base member, an insulator and a rotatable member having threaded engagement with the insulator and the base whereby the former may be adjusted longitudinally with respect to the latter without rotation of the former.

13. A bus-bar structure comprising a base member, an insulator and a rotatable member having threaded engagement with the insulator and the base whereby the former may be adjusted longitudinally with respect to the latter without relative rotative movement of the base and insulator.

In testimony whereof, I have hereunto subscribed my name this 18th day of November, 1919.

JAMES M. BROWVN. 

